Springboard-supporting device



R. B. RUP AND D. A. AND A. R. HAZELTON.

SPRINGBOARD SUPPGRTING DEVICE. APPLICATION FILED mzczs. |919.

Patented Dec. 5,-1922T'A` INVENTORS f /ascoe 9. Rape ma... .-.7 ATTORNEYPatented Bec. 5, 1932.,

unirse l Vveareni;g orifice.

y ,einen vBOSQUE B. RUPE, OF SEATTLE' AND DONALD HAZELTGN AED ALVAEIVHAIUJLTON,V

1 OF TACOMA, "WELSHINGTON.

,SPBNGBOARD-SUPEORTNG' DEVCE.

Application led December 26, 1919. Serial No. 3475`623g To all fio/wm'it may concern.'

i he it known thatywe, `ltosoot B.v Burn, a,

TON, citizens oit the TJnited States? residing; at Tacoma, in the countyoit Pierce and State lof lvashington? have invented certain new andusetul Improvementsin Spriiigboardtaupporting Devices, ot which rthefollowing' is a specication.

This invention relates to platforms such n oft its longitudinal axis andat a distance from the outerend of the plate 19 is a. pair otattachments 2Q, desirably tormed ot angle bars and provided ,in theirtlann'es 23 with *holes within which are pivotally engaged thekextremities otbranches 24 provided at the lower end Qta. support-ing*rod 25 whose upper end is ormedwith a hook which as knownas-choppinglooards7 upon" which woodsmen stand when choppingor sawing`in telling a tree. 1

The obJect ot the invention is the provision of a strong', durableandel'licicnt de-` vice -for supportingthe board andwhich may be mostconveniently vand quickly attached to or disconnected'troin a tree.

A further obj ect is to provide a board supporting structure of thischaracter whichl may be convenient-ly swung; and secured in horizontallyadgusted positions by the oper-4 transverse sectional view Lthrough Q-Zof Fig. 1; and Fig. 3 is a plan viewot thel same. f

.ln carrying out our invent-ion, we provide a bracket member comprisingan upright bar element 5 connectedtrom itslower end yby a forwardlyextending arm 6 with an arcuate portieri 7 termine; with thearm a, shelfele-v ment and having at its 'extremities'laterally directed branches 8from the outer ends of which are rearwardly directed tree penetratingpoints 9. y

The outer faces 10 ot the branches 8 afford shoulders to be struck by amaui or the like in-driving1 the respective points.'` The upper end ofthe bar element is disposed to at tord a surtacell in a plane to therear ot the plane of the back surface 12 ot the `part of the bar elementtherebelow.'

A short distancebelow its otsetupper end,l the bar is provided with ahole having va lower portion j13 sutliciently largeto passy y. the head11i-,ot ay lag screw/15 therethrough while the upper portion 16 ot suchhole has width sutlicient to accommodate the screw shank.

17 `reprt-isents the chopping board proper,

`upon which is secured bybolts 18 plate19l` dispose l longitudinally.At. its inner end saidy plate is formed wlthan upwardly d1- frectedpintle `element 2O which extends through an kaperlaire 21 provided inthe bracket arm 6 adjacent tothe bar part 5.

Secured to the board. 11T `at opposite sides engages in an aperturedlugl" providedon the hracket bar 5. y 4 i The axis et the hookA bill andthe axis of the pintle 20 are rin alinement and'servel as hingeconnection between the bracketand the chopping board `to atl'ordsubstantially horizontal swincvingincrements to the latter. The pivotalconnection between the branches 2d of the' supportinffrod and the boardattachments constitutes a fulcrum for the choppingboard whereby theweight oi its outer end, upon which thek arman or Sawyer stands whenworking. tends to retain the pintle 2O within bracket aperture 21.Included in the invention are devices for securing the board in adjustedhorizontal positions and consists in the provision ot a series ottspaced notches Q8 provided in the underside ot ythe arcuate portion `Yof the bracket cooperating with a pin Q9k secured to plate 19 and havinga tapering' upper end 30' arranged to' engage inv any ot the notches. Tocompensate for the wearing away ot the sharp end 3() ofsaid pim thelatter is pro-k vided with screw threads to engage in a,

threaded hole provided in the plate 19` isr firsty iriven at a selectedelevation into a tree, indicated by broken lines T in Figs. l and 3,kan'dtheupper end ofthe bracket connected to the lag screw.

The Workman then drives the points 9 into thetree untilthe board l?y ,issubstantially horizontal when the bai surface l1 1 is uxtaposed with thetree. rlhe operator thereupon drives or screws the lag screw l5 into thetree until 'the upper portion of the bracket` is firmly held`v to tree.

YThe horizontal position oi the board may be regulated either from theground or by a person upon the board by first lowering the end oftheboard in proximity 'oit' the tree so as to have the pin 30 below thelevel oi' the `'underside of the arcuate portion or the bracket and thenswinging the board in one direction or the `other about the axes of thegintle Q0 and hook bill This may be f readil f `accorti )lished bv theoperator when d c i upon the boa-rd bearing; downwim one of his feetupon the pintle 2O to disconnect the pin 30 from a notch and thereupon`swinging 4the board through Vther agency of his other foot Whilest'eadying himself Withghis hands against the tree. p Thus being'enabledto regulate the vboard Without 'the necessity of descending,`tothe ground is important as inA the felling of trees of large size itis requisite that lthe 'aller should occupy a number of positions duringthe progress of his Work,- sawing and chopping thet under cut,7 sawingon one side oli' the tree and sawing and vWedg'ing on the other side.

The device i5 of iight Weight easily handled, strong and capable ofrigidly retaining c a plate rigidlT secured to said board and having anupu'aifllj-,f extending' pintle element engaging inthe shelf aperture toprovide a pivotal connection between the board and the bracket member,supporting rod Connecting, the bar element with said board at a distance'from said shelf element, and means disposed intermediate the shell?element and the connection ot' said rod with the board for securing;Vthe board in predetermined horizontal anggular positions relative tothe member.

Signed at Seattle, Vashingten, this 9th day of December.` 1.919.

RCSCOE B. UIE, o DONAL A. HAZELTON. ALVAH R. HAZELTON.

Witnesses Pinnen BARNES7V Y` ELIZABETH JOHNSON.

